Man pages matching name sortm in section 1mh:

sortm.1mh.en	debian 10 / mmh
sortm.1mh.en	debian 10 / nmh
sortm.1mh.en	debian 11 / mmh
sortm.1mh.en	debian 11 / nmh
sortm.1mh.en	debian 12 / mmh
sortm.1mh.en	debian 12 / nmh